Sid Meier's Civilization IV is a turn-based strategy game in which you guide a civilization from its first settlement through thousands of years of history. You found cities, research technologies, spread religions, build wonders and deal with rival leaders through trade, diplomacy or war. Victory can come through conquest, culture, space flight and other routes.
It is played alone against AI leaders or in multiplayer against friends, with a slow, thoughtful pace where a single game can last many hours. Widely considered one of the best games in the series, it suits strategy fans who enjoy long, deep campaigns and the classic one more turn feeling.